<html><body>
<form method="post" action="aphpfile.php">
    <input type="text" name="a"/>
    <input type="text" name="b"/>
    <input type="text" name="c"/>
    <iframe id="other1" width="408" height="200" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="other.php"></iframe>
    <input type="submit" value="submit"/>
</form>
<form method="post" action="aphpfile.php">
    <input type="hidden" name="d" value="d"/>
    <input type="text" name="a"/>
    <input type="text" name="b"/>
    <input type="text" name="c"/>
    <iframe id="other1" width="408" height="200" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="other.php"></iframe>
    <input type="submit" value="submit"/>
</form>
</body></html>